Github user sethah commented on a diff in the pull request:
https://github.com/apache/spark/pull/18118#discussion_r148063860
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/regression/DecisionTreeRegressor.scala
---
@@ -108,7 +108,8 @@ class DecisionTreeRegressor @Since("1.4.0")
(@Since("1.4.0") override val uid: S
val instr = Instrumentation.create(this, oldDataset)
instr.logParams(params: _*)
- val trees = RandomForest.run(oldDataset, strategy, numTrees = 1,
featureSubsetStrategy = "all",
+ val trees = RandomForest.run(oldDataset, strategy, numTrees = 1,
--- End diff --
revert this
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